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Hex Nut/Flange Component – Machinery and Equipment Manufacturing

Component Specifications

Definition

The hex nut/flange is a specialized fastener component designed for outlet port fittings in industrial equipment. It combines a standard hexagonal nut with an integrated circular flange that distributes clamping force evenly across the mating surface. This component provides secure mechanical fastening while preventing leakage at connection points in fluid or gas handling systems. The flange acts as a built-in washer, reducing the need for separate sealing components and improving assembly efficiency.

Working Principle

The hex nut/flange operates on the principle of threaded mechanical fastening with distributed load bearing. When tightened onto a threaded stud or bolt, the hexagonal head allows torque application using standard wrenches, while the integrated flange creates a wider bearing surface. This distributes clamping pressure evenly, prevents surface damage to mating components, and creates a more effective seal against fluid or gas leakage. The flange also helps maintain alignment and prevents loosening under vibration.

Materials

Typically manufactured from carbon steel (Grade 5 or 8), stainless steel (AISI 304 or 316), or alloy steel. May include zinc plating, hot-dip galvanizing, or other corrosion-resistant coatings. High-temperature applications may use Inconel or other nickel alloys.

Technical Parameters

Height Standard or thick series
Thread Size M6 to M24 (metric) or 1/4" to 1" (imperial)
Thread Pitch Coarse or fine thread
Torque Rating 20-200 Nm depending on size and material
Flange Diameter 1.5x to 2x nut width
Pressure Rating Up to 1000 PSI for standard applications
Temperature Range -40°C to +400°C (material dependent)

Standards

ISO 4161, DIN 6923, ASME B18.2.2, SAE J995

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Hex Nut/Flange.

Parent Products

This component is used in the following industrial products

Outlet Port Fittings

Connective components that interface the gas inlet manifold with downstream distribution lines.

View Product Details

Engineering Analysis

Risks & Mitigation

Over-torquing can strip threads or crack components
Galvanic corrosion in dissimilar metal applications
Improper alignment causing leakage
Fatigue failure under cyclic loading

FMEA Triads

Trigger: Incorrect torque application during installation
Failure: Thread stripping or component cracking
Mitigation: Use calibrated torque wrenches, follow manufacturer specifications, implement torque verification procedures

Trigger: Vibration in operating environment
Failure: Gradual loosening leading to leakage or component separation
Mitigation: Use thread-locking compounds, implement regular maintenance checks, consider alternative locking designs

Trigger: Corrosive operating environment
Failure: Material degradation and loss of structural integrity
Mitigation: Select appropriate corrosion-resistant materials, apply protective coatings, implement inspection schedules

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

Thread tolerance: 6g for external threads, 6H for internal threads per ISO 965-1. Flange flatness: within 0.1mm across diameter.

Test Method

Torque-to-yield testing, salt spray testing per ASTM B117, pressure testing up to 1.5x rated pressure, dimensional verification per ISO 4759-1

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the advantage of using a hex nut/flange instead of a standard nut and washer?

The integrated design reduces part count, speeds assembly, provides consistent flange alignment, and offers better load distribution than separate components.

Can hex nut/flange components be used in high-vibration environments?

Yes, the flange design provides better resistance to loosening under vibration compared to standard nuts, though additional locking features may be required for extreme conditions.

What maintenance is required for hex nut/flange components?

Periodic torque checks, visual inspection for corrosion or damage, and replacement if threads are worn or flange is deformed. Lubrication may be needed for certain applications.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Hex Nut/Flange